当前位置：
X-MOL 学术
›
J. Chem. Eng. Data
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Insight on the Solubility of R134a in Fluorinated Ionic Liquids and Deep Eutectic Solvents
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-09-22 , DOI: 10.1021/acs.jced.0c00588 Daniel Jovell 1 , Sergi B. Gómez 1, 2 , Malgorzata E. Zakrzewska 2, 3 , Ana V. M. Nunes 2 , João M. M. Araújo 2 , Ana B. Pereiro 2 , Fèlix Llovell 1
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2020-09-22 , DOI: 10.1021/acs.jced.0c00588 Daniel Jovell 1 , Sergi B. Gómez 1, 2 , Malgorzata E. Zakrzewska 2, 3 , Ana V. M. Nunes 2 , João M. M. Araújo 2 , Ana B. Pereiro 2 , Fèlix Llovell 1
Affiliation
|
Within the context of the development of novel separation processes to separate hydrofluorocarbons (HFCs) in the use of refrigerants, this work combines new and recent experimental data with accurate modeling using the soft-SAFT equation of state to assess the feasibility of the absorption of R134a in new fluorinated ionic liquids (FILs) and deep eutectic solvents (DESs). The study is divided in three parts: in a first stage, the solubility of four F-gases with a different number of fluorine atoms, R14, R23, R32, and R134a in the benchmark FIL [C2mim][Tf2N], was measured at low pressures. The results have been modeled with soft-SAFT, including R125 for comparison, in an effort to relate the changes of solubility with the structures of these gases. On the basis of the higher solubility of R134a, this refrigerant has been selected to develop soft-SAFT models capable of describing its solubility in a variety of alternative FILs. An analysis of the binary parameters utilized, remarking their differences related to the molecular model of each FIL, is given. Finally, the study is completed by the synthesis of six DESs based on the combination of [C2mim][Cl] as hydrogen-bond acceptor (HBA), and [HC4F9CO2] and [HC4F9SO3] as hydrogen-bond donors (HBDs) to study the solubility of R134a from an experimental–theoretical approach. New experimental data, including density, viscosity, and F-gas solubility, are provided for these systems. The more rigorous two-compound approach has been used to describe the DESs, increasing the transferability of the models. A novel methodology is proposed to obtain the description of the solubility of R134a in [C2mim][Cl]:[HC4F9SO3] based on the transferability of the soft-SAFT parameters. From the theoretical description, it is possible to predict the refrigerant solubility at different DES proportions, as well as the density of the pure DES.
中文翻译：
关于R134a在氟化离子液体和深共熔溶剂中的溶解度的见解
在开发新的分离方法以在使用制冷剂的过程中分离氢氟碳化合物（HFC）的背景下，这项工作结合了新的和最新的实验数据以及使用软SAFT状态方程的精确模型，以评估吸收R134a的可行性加入新的氟化离子液体（FIL）和深共熔溶剂（DES）中。该研究分为三个部分：第一阶段，四种具有不同氟原子数的F气体R14，R23，R32和R134a在基准FIL [C 2 mim] [Tf 2N]是在低压下测量的。已使用包括R125在内的软SAFT对结果进行了建模，以便将溶解度的变化与这些气体的结构联系起来。基于R134a的较高溶解度，已选择该制冷剂来开发能够描述其在各种替代FIL中的溶解度的软SAFT模型。给出了对所用二进制参数的分析，指出了它们与每个FIL分子模型有关的差异。最后，基于[C 2 mim] [Cl]作为氢键受体（HBA）与[HC 4 F 9 CO 2 ]和[HC 4 F 9 SO 3]作为氢键供体（HBD），通过实验理论方法研究R134a的溶解度。这些系统提供了新的实验数据，包括密度，粘度和F气溶解度。更严格的二元组合方法已用于描述DES，从而提高了模型的可传递性。提出了一种新的方法，以基于软SAFT参数的可传递性来描述R134a在[C 2 mim] [Cl]：[HC 4 F 9 SO 3 ]中的溶解度。根据理论描述，可以预测不同DES比例下的制冷剂溶解度以及纯DES的密度。
更新日期：2020-10-08
中文翻译：
关于R134a在氟化离子液体和深共熔溶剂中的溶解度的见解
在开发新的分离方法以在使用制冷剂的过程中分离氢氟碳化合物（HFC）的背景下，这项工作结合了新的和最新的实验数据以及使用软SAFT状态方程的精确模型，以评估吸收R134a的可行性加入新的氟化离子液体（FIL）和深共熔溶剂（DES）中。该研究分为三个部分：第一阶段，四种具有不同氟原子数的F气体R14，R23，R32和R134a在基准FIL [C 2 mim] [Tf 2N]是在低压下测量的。已使用包括R125在内的软SAFT对结果进行了建模，以便将溶解度的变化与这些气体的结构联系起来。基于R134a的较高溶解度，已选择该制冷剂来开发能够描述其在各种替代FIL中的溶解度的软SAFT模型。给出了对所用二进制参数的分析，指出了它们与每个FIL分子模型有关的差异。最后，基于[C 2 mim] [Cl]作为氢键受体（HBA）与[HC 4 F 9 CO 2 ]和[HC 4 F 9 SO 3]作为氢键供体（HBD），通过实验理论方法研究R134a的溶解度。这些系统提供了新的实验数据，包括密度，粘度和F气溶解度。更严格的二元组合方法已用于描述DES，从而提高了模型的可传递性。提出了一种新的方法，以基于软SAFT参数的可传递性来描述R134a在[C 2 mim] [Cl]：[HC 4 F 9 SO 3 ]中的溶解度。根据理论描述，可以预测不同DES比例下的制冷剂溶解度以及纯DES的密度。
京公网安备 11010802027423号